Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstock
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/2325 |
Resumo: | The objective of this work was to determine alterations in physiology and those due to drought tolerance on Conilon coffee (Coffea canephora) contrasting clones regarding the sensitivity to hydric stress. The reciprocal grafting between clones 109A, drought sensitive, and 120, drought tolerant, – 120/109A, 120/120, 109A/120, 109A/109A – along with their ungrafted control plants (109A and 120) were evaluated. Plants were cultivated in 12-L vases in greenhouse. Six months after grafting, half of the plants was subjected to water deficit, by suspending irrigation until leaves reached the hydric potential of -3,0 MPa. When clone 120 was used as rootstock, plants presented deeper roots, although with lower root-biomass, higher ability to postpone leaf dehydration and higher instantaneous water-use efficiency (WUE). Under severe drought, starch and sucrose contents decreased similarly, regardless of the treatment, whereas leaf concentrations of glucose, fructose, total amino acids and proline were higher in non-grafted 109A, 109A/109A, and 120/109A plants. These plants showed the lowest WUE values. Solute accumulation was not primarily related to drought tolerance. The use of drought tolerant rootstocks improves to drought tolerance in coffee. |
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Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstockResposta fisiológica de clone de café Conilon sensível à deficiência hídrica enxertado em porta-enxerto toleranteCoffea canephora; water deficit; water-use efficiency; grafting; proline; drought toleranceCoffea canephora; deficit hídrico; eficiência no uso da água; enxertia; prolina; tolerância à secaThe objective of this work was to determine alterations in physiology and those due to drought tolerance on Conilon coffee (Coffea canephora) contrasting clones regarding the sensitivity to hydric stress. The reciprocal grafting between clones 109A, drought sensitive, and 120, drought tolerant, – 120/109A, 120/120, 109A/120, 109A/109A – along with their ungrafted control plants (109A and 120) were evaluated. Plants were cultivated in 12-L vases in greenhouse. Six months after grafting, half of the plants was subjected to water deficit, by suspending irrigation until leaves reached the hydric potential of -3,0 MPa. When clone 120 was used as rootstock, plants presented deeper roots, although with lower root-biomass, higher ability to postpone leaf dehydration and higher instantaneous water-use efficiency (WUE). Under severe drought, starch and sucrose contents decreased similarly, regardless of the treatment, whereas leaf concentrations of glucose, fructose, total amino acids and proline were higher in non-grafted 109A, 109A/109A, and 120/109A plants. These plants showed the lowest WUE values. Solute accumulation was not primarily related to drought tolerance. The use of drought tolerant rootstocks improves to drought tolerance in coffee.O objetivo deste trabalho foi determinar alterações fisiológicas e de tolerância à seca em clones de café Conilon (Coffea canephora) contrastantes quanto à sensibilidade ao deficit hídrico. Foram avaliadas as enxertias recíprocas entre os clones 109A, sensível ao deficit hídrico, e 120, tolerante – 120/109A, 120/120, 109A/120, 109A/109A –, além de seus respectivos pés-francos. As plantas foram cultivadas em vasos de 12 L em casa de vegetação. Após seis meses, metade das plantas foi submetida ao deficit hídrico por meio da suspensão da irrigação, até que as folhas atingissem o potencial hídrico de antemanhã de -3,0 MPa. Quando o clone 120 foi usado como porta-enxerto, as plantas apresentaram sistema radicular mais profundo, mas com menor massa, retardaram por mais tempo a desidratação celular das folhas e apresentaram maior eficiência no uso da água. Sob seca severa, os teores de amido e sacarose decresceram em todos os tratamentos, enquanto os teores de glicose, frutose, aminoácidos totais e prolina aumentaram, particularmente nos tratamentos 109A pé-franco, 109A/109A e 120/109A. Essas plantas apresentaram menor eficiência no uso da água. O acúmulo de solutos não foi associado à tolerância à seca. O uso de porta-enxertos tolerantes à seca contribui para a maior tolerância das plantas ao deficit hídrico.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), à Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), à Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)Silva, Vânia AparecidaAntunes, Werner CamargosGuimarães, Breno Lourenzzo SalgadoPaiva, Rita Márcia CardosoSilva, Vanisse de FátimaFerrão, Maria Amélia GavaDaMatta, Fábio MuriloLoureiro, Marcelo Ehlers2011-01-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/2325Pesquisa Agropecuaria Brasileira; v.45, n.5, maio 2010; 457-464Pesquisa Agropecuária Brasileira; v.45, n.5, maio 2010; 457-4641678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/2325/5962https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2325/1715https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2325/1716info:eu-repo/semantics/openAccess2014-10-17T17:49:04Zoai:ojs.seer.sct.embrapa.br:article/2325Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-10-17T17:49:04Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstock Resposta fisiológica de clone de café Conilon sensível à deficiência hídrica enxertado em porta-enxerto tolerante |
title |
Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstock |
spellingShingle |
Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstock Silva, Vânia Aparecida Coffea canephora; water deficit; water-use efficiency; grafting; proline; drought tolerance Coffea canephora; deficit hídrico; eficiência no uso da água; enxertia; prolina; tolerância à seca |
title_short |
Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstock |
title_full |
Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstock |
title_fullStr |
Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstock |
title_full_unstemmed |
Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstock |
title_sort |
Physiological response of Conilon coffee clone sensitive to drought grafted onto tolerant rootstock |
author |
Silva, Vânia Aparecida |
author_facet |
Silva, Vânia Aparecida Antunes, Werner Camargos Guimarães, Breno Lourenzzo Salgado Paiva, Rita Márcia Cardoso Silva, Vanisse de Fátima Ferrão, Maria Amélia Gava DaMatta, Fábio Murilo Loureiro, Marcelo Ehlers |
author_role |
author |
author2 |
Antunes, Werner Camargos Guimarães, Breno Lourenzzo Salgado Paiva, Rita Márcia Cardoso Silva, Vanisse de Fátima Ferrão, Maria Amélia Gava DaMatta, Fábio Murilo Loureiro, Marcelo Ehlers |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), à Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), à Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) |
dc.contributor.author.fl_str_mv |
Silva, Vânia Aparecida Antunes, Werner Camargos Guimarães, Breno Lourenzzo Salgado Paiva, Rita Márcia Cardoso Silva, Vanisse de Fátima Ferrão, Maria Amélia Gava DaMatta, Fábio Murilo Loureiro, Marcelo Ehlers |
dc.subject.por.fl_str_mv |
Coffea canephora; water deficit; water-use efficiency; grafting; proline; drought tolerance Coffea canephora; deficit hídrico; eficiência no uso da água; enxertia; prolina; tolerância à seca |
topic |
Coffea canephora; water deficit; water-use efficiency; grafting; proline; drought tolerance Coffea canephora; deficit hídrico; eficiência no uso da água; enxertia; prolina; tolerância à seca |
description |
The objective of this work was to determine alterations in physiology and those due to drought tolerance on Conilon coffee (Coffea canephora) contrasting clones regarding the sensitivity to hydric stress. The reciprocal grafting between clones 109A, drought sensitive, and 120, drought tolerant, – 120/109A, 120/120, 109A/120, 109A/109A – along with their ungrafted control plants (109A and 120) were evaluated. Plants were cultivated in 12-L vases in greenhouse. Six months after grafting, half of the plants was subjected to water deficit, by suspending irrigation until leaves reached the hydric potential of -3,0 MPa. When clone 120 was used as rootstock, plants presented deeper roots, although with lower root-biomass, higher ability to postpone leaf dehydration and higher instantaneous water-use efficiency (WUE). Under severe drought, starch and sucrose contents decreased similarly, regardless of the treatment, whereas leaf concentrations of glucose, fructose, total amino acids and proline were higher in non-grafted 109A, 109A/109A, and 120/109A plants. These plants showed the lowest WUE values. Solute accumulation was not primarily related to drought tolerance. The use of drought tolerant rootstocks improves to drought tolerance in coffee. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-20 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/2325 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/2325 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/2325/5962 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2325/1715 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/2325/1716 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.45, n.5, maio 2010; 457-464 Pesquisa Agropecuária Brasileira; v.45, n.5, maio 2010; 457-464 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416654423588864 |